GB/T 12459  弯头 DN 50-Sch10180EL-150 RF Sch40S9bl3

DN 50-Sch10 180EL-150 RF Sch40S9bl3

WN 50(B)-600RF fm4/0 RF Sc

PL250-40 RJRFh4080º40@44

SO 500-10 RF/L42350/B)-4

SO100(B)-10RFHGSFM2600-1.0

SW 2"-150 RF4�’ТӘР�

DN250-PN10 PL RF I/S/5 d=4A48/6

WN150-150 rfsc40s

DN350-PN16 PL RF I15 R RF